mavenCentral url

I tried to build a history version of an Android project.
It uses gradle plugin 1.0.0 and gradle version 1.8.
At the file build.gradle, it uses repository mavenCentral to download dependencies.
However, in the mavenCentral, it still tries to use protocol HTTP rather HTTPS.
So, I want to know from which version of gradle plugin or gradle, the mavenCentral protocol changed to HTTPS.

This is in the Gradle 2.1 Release Notes: Use of HTTPS for mavenCentral() and jcenter() dependency repositories.

Thanks for your help. :slight_smile: